Dear Nigel with his linguistic difficulties makes for a welcome diversion in this otherwise tedious thread, Dave (though I do try my best to contribute to the substantive, tha knows). He is tediously stiff in his manner and is way too concerned with minutiae, when most of us can relax into our semi-informal posting mode (though we have to be careful as there's always a keefie about). The trouble with the Nigels of this world is that they set themselves up all too easily for nastily-hawkish people like me to gleefully attack them, as soon as they attack us, as they constantly make errors, probably by trying too hard. It's like playing a tune or singing a song: if you worry over-much about making a mistake, you'll make a mistake, sure as eggs is eggs. I could easily go over my own posts here and find hundreds of errors, but I won't, and in any case I care not a jot. Bring it on, Nigel. But you can't win, so maybe I'm giving you bad advice.